KR200380204Y1 - Tile composed of synthetic resin with bar code - Google Patents

Abstract

The present invention relates to a synthetic resin tile printed with a bar code, in the synthetic resin tile made of a plurality of vinyl chloride resin layer, a barcode printed synthetic resin tile, characterized in that the bar code is printed on the upper portion of the printing stop layer is formed According to this configuration, since the barcode is printed directly on the print stop layer constituting the tile, it is not easily separated from the tile.

Description

Tile composed of synthetic resin with bar code

The present invention relates to a plastic tile printed with a bar code, and more particularly to a plastic tile printed with a bar code that provides the data necessary for the autonomous mobile robot to operate unattended.

In general, the resin tile 20 is composed of a plurality of layers mainly made of polyvinyl chloride (PVC) are sequentially stacked from the bottom, as shown in Figure 1 is usually the bottom layer 21, the base layer 22, The print stop layer 23 and the transparent upper layer 24 are laminated in this order.

The base layer 22 may have a configuration integrated into one layer, or may have a configuration in which two or more layers are combined for ease of manufacture.

In addition, the print stop layer 23 is formed with a predetermined pattern required by the user by various printing techniques, and the transparent upper layer 24 has a pattern printed on the print stop layer 23 from the outside. It is formed of a transparent material so that it can be.

At this time, the transparent upper layer 24 has a function of protecting the pattern of the print stop layer 23 disposed below the upper surface of the transparent upper layer 24, the surface excellent in wear resistance, fouling resistance and fire resistance, etc. The treatment layer 25 is formed.

Recently, with the emergence of autonomous mobile robots that autonomously move and perform various functions, various techniques for providing information, such as absolute coordinates, for moving the autonomous mobile robot have been proposed.

For example, by embedding a radio frequency ID (RFID) card in a flooring material, an autonomous mobile robot receives information about absolute coordinates from the RFID card and quickly and accurately calculates relative coordinates, movement direction, and distance from the absolute coordinates. A technique that can be known is known, and this technique has a configuration in which the RFID cards 1a, 1b, 1c are embedded in a selected portion of the flooring material 2 having a multilayer structure.

When the RFID cards 1a, 1b and 1c are used in this way, the accuracy of position and orientation recognition of the autonomous mobile robot 3 is determined according to the distribution density of the RFID cards 1a, 1b and 1c. If the distribution density of 1b, 1c is too low, the precise position and direction recognition of the autonomous mobile robot 3 cannot be expected. If the distribution density of the RFID cards 1a, 1b, 1c is too high, each RFID card 1a, 1b is expected. , 1c) may cause an error in reading the unique number due to mutual interference between the RF signals output from 1c).

Therefore, in order to prevent an error from occurring, it is better to limit the embedding density of the RFID cards 1a, 1b, and 1c to an appropriate range, which is a method of recognizing position and direction using the RFID cards 1a, 1b, and 1c. This can cause a drop in the precision. In addition, in the method using the RFID card (1a, 1b, 1c), the autonomous mobile robot (3) with the RFID card reader 4 must recognize at least two RFID cards at the same time in order to recognize the direction If the distribution density of the RFID cards 1a, 1b, 1c is not high enough, it becomes difficult to recognize the direction.

In addition, an error may occur even when there is an object absorbing a magnetic field in a place where the RFID cards 1a, 1b, and 1c are embedded.

In particular, the method using the RFID card (1a, 1b, 1c) has a problem that the manufacturing process is inconvenient because the RFID card (1a, 1b, 1c) must be embedded in the flooring.

In addition, when using the RFID card (1a, 1b, 1c) in a large area, a plurality of RFID cards (1a, 1b, 1c) should be used, expensive installation in operating the autonomous mobile robot (3) In addition to the expense, it is necessary to pay attention to damage during maintenance, and expensive maintenance costs are caused.

In addition, the RFID card reader (1a, 1b, 1c) and the RFID card reader for recognizing the RFID card (1a, 1b, 1c) is an expensive component, which increases the cost of the flooring material and the autonomous mobile robot (3). I have a problem.

In order to compensate for this disadvantage, a technology for forming a barcode layer having data on a separate sheet and allowing an autonomous mobile robot equipped with a barcode reader to be operated unattended using the information of the barcode is developed.

3, the barcodes 11 are arranged at regular intervals in the longitudinal direction in the sheet 10, and each barcode 11 functions as a coordinate system by having different data, for example, coordinate values . That is, the barcode reader obtains the absolute coordinates from the barcode, calculates the relative coordinates from the absolute coordinates, and further calculates the movement direction and distance.

However, when the bar code 11 is formed on the sheet 10, an adhesive layer should be provided on the back surface of the sheet 10 to be used for the flooring material. When the elongation of the sheet and the flooring material is different from each other, the sheet is separated or moved from the flooring material. Etc. There is a problem that the position of the barcode is changed.

In addition, the barcode may be used both one-dimensional and two-dimensional barcode, as shown in Figure 3, QR code (Ouick Response Code) developed in the Nippondenso ID System (Nupondenso ID System) has an excellent effect. The rectangular QR code has three finders in the corners for easy identification, and the areas marked in black are the data holding parts.

The fluorescent ink for bar codes currently being developed includes fluorescent urethanes, vinyl, acrylic, modified acrylic resins and other additives in organic dyes or organic pigments. It is used colorlessly to avoid. However, the colorless transparent fluorescent ink is mainly used so as not to harm the aesthetics of the pattern layer printed on the surface due to the nature of PVC flooring material.

However, when printing a bar code using such an organic dye or an organic pigment, there is a problem that the light resistance and heat resistance is lowered and discolored depending on the type of the resin contained in the organic dye or pigment to damage the aesthetics of the flooring material. Here, light resistance refers to the ability of printed barcodes to be emitted by natural light or barcode readers and not gradually decrease in luminescence. The flooring material has a long service life of about 5 years on average, but barcodes using organic dyes have low light resistance and their lifetime is 1. There was a problem as short as a year.

The present invention has been proposed to solve this problem, and the purpose of the present invention is to provide a barcode printed synthetic resin tile that can accurately provide information necessary for the movement of the autonomous mobile robot by a simple structure in which the barcode is printed directly on the flooring material. have.

In addition, the present invention is not easily damaged by surface abrasion or heat, and another object of the present invention is to provide a barcode printed synthetic resin tiles with improved light resistance and recognition rate by a barcode reader.

As a technical configuration for achieving the above object, the present invention, in a synthetic resin tile made of a plurality of vinyl chloride resin layer, a bar code is printed, characterized in that the bar code is printed on the top of the stop printing layer is formed a predetermined pattern Characterized by synthetic resin tiles.

The vinyl chloride resin layer may be formed of a base layer and a base layer formed between the base layer and the printing stop layer.

The tile of the present invention may further include a transparent upper layer formed of a transparent material and stacked on top of the printing stop layer to cover the barcode.

In addition, the barcode is preferably disposed inside the transparent upper layer.

In addition, the barcode is preferably printed with a transparent ink.

In addition, the ink is preferably an inorganic fluorescent pigment or a phosphorescent pigment.

In addition, the barcode may be printed using any one of gravure printing, screen printing, pad printing, transfer printing, and marking machine printing.

In addition, the barcode is preferably printed as an inverted image.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a cross-sectional view showing a synthetic resin tile printed bar code according to the present invention.

The synthetic resin tile 40 of the present invention is manufactured to have a predetermined required thickness, for example, a thickness of 3 mm.

The synthetic resin tile 40 has a structure in which a base layer 41, a base layer 42, and a print stop layer 43 are sequentially stacked, and a barcode 45 is printed on the print stop layer 43. . In addition, since the transparent upper layer 44 is stacked on the upper portion of the stop printing layer 43, a barcode 45 is formed at the boundary between the stop layer 43 and the transparent upper layer 44, and the transparent upper layer 44 is formed. Layer 44 may be omitted as needed.

The base layer 41 is called a balance layer, and is formed to have a thickness of about 0.42 mm to 0.8 mm, and is a portion attached to the floor of a building when the tile 40 of the present invention is constructed. If the thickness of the base layer 41 is too large, the thickness of the other layer is smaller, or it is not preferable to excessively increase the overall thickness of the synthetic resin tile 40.

The base layer 42 is a main body constituting the synthetic resin tile 40, has a thickness of about 2.33mm, 10 to 100 parts by weight plasticizer, 30 to 1000 parts by weight filler, stabilizer 1 based on 100 parts by weight of vinyl chloride resin It can be prepared by mixing with ~ 10 parts by weight and other additives.

The print stop layer 43 is formed using a variety of printing techniques, for example, solvent ink, and a predetermined pattern having a sense of taste by a gravure printing method, and has a thickness of about 0.1 mm.

In addition, the tile structure may have a transparent upper layer 44 and a print stop layer 45, and a plurality of PVC vinyl chloride resin layers 47 may be stacked thereunder.

The barcode 45 is printed on the upper portion of the print stop layer 43, and the barcodes are arranged at regular intervals in the vertical and horizontal directions so as to function as a coordinate system for the autonomous mobile robot moving on the tiles. It has a coordinate value. Of course, the number of barcodes 45 formed on the tile 40 may be set in correspondence to the distance between the barcodes that may function as the coordinate system of the autonomous mobile robot, and if the autonomous mobile robot can function as the coordinate system If the distance between the barcodes is relatively smaller than the length of the tiles 40, a plurality of barcodes 45 are arranged in each tile 40, the distance between the barcodes that can function as the coordinate system of the autonomous mobile robot Is relatively larger than the length of the side of the tile 40, when the tile 40 is constructed, the bar coded tiles and tiles that are not formed may be selectively used so that the bar codes 45 may be arranged at regular intervals in the longitudinal and horizontal directions. It may be.

In addition, the barcode 45 of the present invention may be formed on the bottom surface of the transparent image layer 44 and the print stop layer 43 may be combined.

In addition, the barcode 45 of the present invention may be formed on a separate sheet, and the sheet may be stacked between the print stop layer 43 and the transparent upper layer 44.

Since the barcode 45 is printed directly on the print stop layer 43 forming a tile or directly forms a layer of the tile by a separate sheet, the problem caused by adhering the adhesive sheet to the tile separately as in the related art is eliminated. do.

The printing method of the barcode 45 is used, such as gravure printing, transfer printing, marking machine (industrial inkjet printer) printing, etc. The ink used may be an organic dye-based fluorescent ink, but preferably an inorganic fluorescent or phosphorescent pigment. Ink mixed with a solvent is used.

The composition of the ink including an inorganic fluorescent or photoluminescent pigment may be an inorganic fluorescent or photoluminescent pigment, urethane, vinyl, acrylic, or modified acrylic resin, and additives are included to prevent precipitation, improve dispersibility, and ease bubble removal. And solvents, and include ultraviolet absorbers, blockers, antioxidants, and the like to improve the light and heat resistance of resins and other additives.

These inorganic fluorescent inks are colorless and are not identified by the naked eye in the printed state, and use materials emitting in the ultraviolet wavelength range. This is for the economics of the barcode reader that recognizes barcodes without harming the aesthetics of printed patterns. As an LED used in barcode readers, UV LEDs are cheaper than infrared LEDs.

The barcode may be printed as a conventional image as shown in FIG. 5A, but may be printed as an inverted image as shown in FIG. 5B. In FIG. 5, the black portion is the portion on which the ink is printed, and in the case of using colorless ink as in the present embodiment, it will not actually be visually identified. In this way, when the image of the barcode is inverted and printed, the recognition rate by the barcode reader is improved. This is considered to be because the boundary is generated in the barcode by being represented by the inverted image. The barcode illustrated in FIG. 5 is a QR code.

The transparent upper layer 44 is formed of a transparent material so that the pattern printed on the print stop layer 43 can be seen from the outside. The transparent upper layer 44 does not interfere with the recognition of the barcode 45 by the barcode reader mounted on the autonomous mobile robot, but rather protects the barcode 45 from being easily damaged by surface scratches or heat applied to the tile. Function

At this time, the composition of the transparent upper layer 44 is laminated on the upper portion of the printing stop layer 43 to a predetermined thickness.

In addition, the transparent upper layer 44 is itself formed of a material having excellent wear resistance, fouling resistance and fire resistance, or a separate surface treatment layer 46 is formed as a transparent layer for improving the surface strength of the transparent upper layer 44 It can be formed by coating on top of the cured, and mainly UV coating layer.

In addition, the transparent upper layer 44 may be composed of several layers. In this case, the barcode 45 may be formed at a selected position between the various layers forming the transparent upper layer 44.

Referring to FIG. 6, a usage example of a synthetic resin tile 40 on which a barcode is printed will be described. When the synthetic resin tile 40 on which a barcode 45 is printed is constructed, the barcode 45 may be an autonomous mobile robot (not shown). It is arranged to be separated by a predetermined distance in the longitudinal and transverse directions so as to provide the required data, and when the autonomous mobile robot moves above the tile 40, it is placed on the barcode reader 50 mounted on the autonomous mobile robot. By the barcode 45 is recognized, the autonomous mobile robot receives the information of the barcode 45 and calculates the moving distance and direction.

As described above, according to the synthetic resin tile printed with the barcode according to the present invention, since the barcode is directly printed on the printing stop layer constituting the tile, it is not easily separated from the tile.

In addition, when the barcode is covered by the transparent upper layer, it is not easily damaged by surface abrasion or heat.

In addition, since the inorganic fluorescent and photoluminescent pigments are used as ink for printing barcodes, they are resistant to heat and have excellent light resistance.

In addition, since the barcode is printed as an inverted image, the recognition rate by the barcode reader is improved.

1 is a cross-sectional view showing a typical synthetic resin tile;

2 is an explanatory diagram showing a state where an RFID card is embedded in a conventional resin tile to provide data to an autonomous mobile robot;

3 shows a sheet on which a conventional barcode is printed;

Figure 4 is a cross-sectional view showing a synthetic resin tile printed bar code according to the present invention;

5 is a view showing the printing format of the bar code formed on the synthetic resin tile of the present invention;

Figure 6 is an explanatory diagram showing a bar code installed in the synthetic resin tile of the present invention provides data to the autonomous mobile robot.

※ Explanation of symbols about main part of drawing ※

40 tile 41 base layer

42: base layer 43: printing stop layer

44: transparent upper layer 45: barcode

46: surface treatment layer

Claims (8)

In the synthetic resin tile composed of a plurality of vinyl chloride resin layer, A barcode printed synthetic resin, characterized in that the bar code is printed on top of the print stop layer is a predetermined pattern is formed. The barcode printed synthetic resin tile according to claim 1, wherein the vinyl chloride resin layer comprises a base layer and a base layer formed between the base layer and the printing stop layer. The barcode of claim 1, further comprising a transparent upper layer formed of a transparent material and stacked on top of the printing stop layer to cover the barcode. The barcode of claim 3, wherein the barcode is disposed inside the transparent upper layer. 4. A synthetic resin tile printed bar code according to any one of claims 1 to 3, wherein said barcode is printed with transparent ink. The synthetic resin tile printed bar code according to claim 5, wherein the ink is an inorganic fluorescent pigment or a phosphorescent pigment. 6. The barcode printed synthetic tile according to claim 5, wherein the barcode is printed using any one of a method of live printing, silkscreen printing, gravure printing, screen printing, pad printing, transfer printing, or marking machine printing. . The synthetic resin tile printed bar code of claim 5, wherein the barcode is printed by inverting an image.